From 47e8a17491e37df53743bc2e72309f8f0d6224af Mon Sep 17 00:00:00 2001 From: Konstantin Komarov Date: Wed, 28 Aug 2024 11:55:53 +0300 Subject: [PATCH] fs/ntfs3: Fix possible deadlock in mi_read [ Upstream commit 03b097099eef255fbf85ea6a786ae3c91b11f041 ] Mutex lock with another subclass used in ni_lock_dir(). Reported-by: syzbot+bc7ca0ae4591cb2550f9@syzkaller.appspotmail.com Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin --- fs/ntfs3/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c index bff1934e044e5..c1bce9d656cff 100644 --- a/fs/ntfs3/namei.c +++ b/fs/ntfs3/namei.c @@ -79,7 +79,7 @@ static struct dentry *ntfs_lookup(struct inode *dir, struct dentry *dentry, if (err < 0) inode = ERR_PTR(err); else { - ni_lock(ni); + ni_lock_dir(ni); inode = dir_search_u(dir, uni, NULL); ni_unlock(ni); } -- 2.47.3